Well this is how I've felt, his feedback was too good, he didn't log after payment was made so I didn't think he was avoiding me, and he was frequently posting before that point. However, I've left him numerous messages about never getting a notification that it was delivered, or the delivery confirmation code. Payment was made on Sunday, he stated that he'd ship it out if payment was made before Monday morning, and the last time I saw him active was Monday evening (until recently).
Between then and Friday I left him several messages via his e-mail, CAG account, and finally on Friday through the paypal resolution center (which gets routed to his e-mail address). It wasn't until last night when I logged on and noticed that he was last active Saturday evening, and that he didn't respond to any of my messages, that I began to get really concerned.